Abstract: An apparatus includes a bracket, a pushing member having a pushing surface, a magazine member to fitting about a plurality of clamping rings, a sending member, a fixing member fixed to the bracket and a resisting member fixed to the fixing member. The fixing member defines a positioning hole for fixing the magazine member, with the clamping rings freely sliding through the positioning hole. The sending member includes two guiding rods fixed to the fixing member, two elastic elements fitting about the corresponding guiding rods, and a moving board slidably mounted to the guiding rods. The elasticity of the elastic elements urges the moving board to drive one of the plurality of clamping rings to resist against the resisting member. When the pushing member is moved towards the fixing member, the pushing surface pushes the one clamping ring to clamp a shaft of a connecting piece.

Abstract: A pressing apparatus is used to press a number of hooks of a speaker mesh to a shell. The pressing apparatus includes a workbench, a first pressing board located above the workbench, a number of bending members extending down from the first pressing board, a second pressing board located above the first pressing board, and a number of pressing members extending down from the second pressing board and slidably passing through the first pressing board. The number of bending members press inner sides of distal ends of the hooks to bend out in response to the first pressing board moving towards the workbench; and the number of pressing members press the distal ends of the hooks to bend further to hold the shell in response to the second pressing board moving towards the workbench.

Abstract: An apparatus includes a bracket, a pushing member having a pushing surface, a magazine member to fitting about a plurality of clamping rings, a sending member, a fixing member fixed to the bracket and a resisting member fixed to the fixing member. The fixing member defines a positioning hole for fixing the magazine member, with the clamping rings freely sliding through the positioning hole. The sending member includes two guiding rods fixed to the fixing member, two elastic elements fitting about the corresponding guiding rods, and a moving board slidably mounted to the guiding rods. The elasticity of the elastic elements urges the moving board to drive one of the plurality of clamping rings to resist against the resisting member. When the pushing member is moved towards the fixing member, the pushing surface pushes the one clamping ring to clamp a shaft of a connecting piece.

Abstract: A pressing apparatus is used to press a number of hooks of a speaker mesh to a shell. The pressing apparatus includes a workbench, a first pressing board located above the workbench, a number of bending members extending down from the first pressing board, a second pressing board located above the first pressing board, and a number of pressing members extending down from the second pressing board and slidably passing through the first pressing board. The number of bending members press inner sides of distal ends of the hooks to bend out in response to the first pressing board moving towards the workbench; and the number of pressing members press the distal ends of the hooks to bend further to hold the shell in response to the second pressing board moving towards the workbench.